CN109088777A - A kind of coalignment and method of the connection of ROADM business optical fiber - Google Patents
A kind of coalignment and method of the connection of ROADM business optical fiber Download PDFInfo
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- CN109088777A CN109088777A CN201811073053.0A CN201811073053A CN109088777A CN 109088777 A CN109088777 A CN 109088777A CN 201811073053 A CN201811073053 A CN 201811073053A CN 109088777 A CN109088777 A CN 109088777A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims abstract description 237
- 239000013643 reference control Substances 0.000 claims abstract description 51
- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 101100103010 Schizosaccharomyces pombe (strain 972 / ATCC 24843) wss2 gene Proteins 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010230 functional analysis Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0876—Aspects of the degree of configuration automation
- H04L41/0886—Fully automatic configuration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
- H04J14/0261—Optical medium access at the optical multiplex section layer
- H04J14/0264—Multiplex identification or labelling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0205—Select and combine arrangements, e.g. with an optical combiner at the output after adding or dropping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/0217—Multi-degree architectures, e.g. having a connection degree greater than two
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
- H04J14/0272—Transmission of OAMP information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0083—Testing; Monitoring
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to technical field of photo communication, more particularly to the coalignment and method of a kind of connection of ROADM business optical fiber, wherein device include with reference to control optical channel transmitter, downlink WSS, emission port, with reference to control optical channel receivers, uplink WSS and receiving port；With reference to the transmitting of control optical channel transmitter with reference to control optical signal, downlink WSS realizes the polled transmission with reference to control optical channel in each emission port；Uplink WSS realizes that each receiving port poll selection with reference to control optical channel, is received by reference control optical channel receivers；With reference to control optical channel work in WSS operating wavelength range, outside business optical channel wave-length coverage.Poll of the present invention using WSS control with reference to control optical channel between ROADM business side ports, realizes the automatic matched routings of optical fiber connection between different ROADM business side ports, improves allocative efficiency；Meanwhile it can also be achieved optical fiber connects between different directions ROADM business side ports performance monitoring and as the cascade spare physical channel of cabinet.
Description
[technical field]
The present invention relates to technical field of photo communication, and in particular to a kind of coalignment of ROADM business optical fiber connection and
Method.
[background technique]
(Reconfigurable OpticalAdd-Drop Multiplexer, is abbreviated as reconstructable OADM
It ROADM) is wavelength-division multiplex (Wavelength DivisionMultiplexing, be abbreviated as WDM) optical-fiber network wavelength level traffic
The key technology of Automatic dispatching.Pass through optical fiber interconnections between the ROADM board business side ports of ROADM intra-node different directions,
Physically realize the repeat in work between different directions.When network management carries out traffic scheduling, need to inquire different directions
The physical connection topology information of ROADM business side fiber port is just able to achieve the correct scheduling of business routing.For example, 4 dimension ROADM
Four direction ROADM board business side interconnects in node, needs 6 pairs of optical fiber connections, eight directions in 8 dimension ROADM nodes
ROADM board needs the connection of 28 pairs of optical fiber, and in 20 dimension ROADM nodes and 20 ROADM boards then need 190 pairs of optical fiber to connect
It connects.
Currently, generally by human configuration mode by practical light between the ROADM business side of ROADM intra-node different directions
The information of fibre connection shifts to an earlier date input database, is used for ROADM Automatic dispatching Traffic Channel.But this mode inefficiency, in real time
Property it is poor, and be easy error, checked after error difficult.Method also is real according to the spectral information of the detection line side ROADM output
Existing matched routings, however it is slow to acquire spectral information speed, and dependence Traffic Channel is open-minded in advance, cannot achieve service fulfillment
Preceding configuration can not also influence the configuration of existing business；When network size is larger, the wavelength intersected between different directions may
It can be multiplexed, such as there are wavelength 1 between direction a and direction b only relies only on and do not hold there is also wavelength 1 between direction c and direction d
The service wavelength for carrying route direction information is unable to complete accurate match.There are also methods to avoid external business side from connecting using light back board
Fibre, but reliability is low, at high cost, and when ROADM dimension is more, to also result in cabinet bulky for shared back panel.
In consideration of it, overcoming defect present in the above-mentioned prior art is the art urgent problem to be solved.
[summary of the invention]
The technical problem to be solved in the invention is:
It, will by human configuration at present when establishing the physical connection information of different directions ROADM business side fiber port
Physics connects fine relationship input database, and inefficiency, real-time are poor, and is easy error, and difficulty is checked after error.
The present invention reaches above-mentioned purpose by following technical solution:
In a first aspect, the present invention provides a kind of coalignment of ROADM business optical fiber connection, including reference controls light
Channellized transmitter 1, downlink WSS2, multiple emission ports, with reference to control optical channel receivers 3, uplink WSS 4 and multiple receptions
Port；
It is described to be used for reference to control optical channel transmitter 1 for emitting reference control optical channel signal, the downlink WSS 2
Realize the reference control optical channel in the polled transmission of each emission port；
It is described to be used for reference to control optical channel receivers 3 for receiving reference control optical channel signal, the uplink WSS 4
It is described with reference to control optical channel to realize that each receiving port poll selection receives；
Wherein, it is described with reference to control optical channel work in ROADM in the operating wavelength range of WSS, business optical channel wave
Other than long range.
It preferably, further include wave multiplexer 5, the wave multiplexer 5 is positioned at described with reference to control optical channel transmitter 1 and under described
Between row WSS 2, the wave multiplexer 5 is used for the downlink business signal of ROADM and the reference control optical channel multiplexing one
Play the injection downlink WSS 2.
It preferably, further include channel-splitting filter 6, the channel-splitting filter 6 is located at the uplink WSS 4 with described with reference to control optical channel
Between receiver 3, the channel-splitting filter 6 is used to separate the uplink service optical signal with reference to control optical channel and ROADM.
Second aspect, the present invention also provides a kind of matching process of ROADM business optical fiber connection, can pass through above-mentioned the
A kind of coalignment of the connection of ROADM business optical fiber described in one side is realized, is inserted into reference to control in ROADM business side
Optical channel processed, it is described with reference to control optical channel work in ROADM in the operating wavelength range of WSS, business optical channel wavelength model
It encloses outer；Wherein, uplink WSS, downlink WSS, multiple emission ports and multiple receiving ports are provided in ROADM；Then the method
Specifically:
Optical channel emitting side is controlled in reference, the polled transmission reference control between each emission port by the downlink WSS
Optical channel signal；Optical channel receiving side is controlled in reference, is received by the uplink WSS in each receiving port poll, if appointed
One receiving port receives the control optical channel signal of the reference from other ROADM emission ports, then it is corresponding to establish this ROADM
The connection relationship of receiving port emission port corresponding to the other ROADM.
Preferably, optical channel emitting side is controlled in reference, launched via each emission port described with reference to control light letter
Road signaling bearer has ROADM board information and corresponding emission port information.
Preferably, described with reference to control optical channel emitting side, by the downlink WSS, poll is sent out between each emission port
It penetrates with reference to control optical channel signal, specifically: the downlink WSS determines current emission port by poll, controls light by reference
Reference that channellized transmitter transmitting carries ROADM board information and current emission port information controls optical channel signal, from right
It answers emission port to be emitted, and then is sent out carrying information；
Wherein, when downlink business optical signal and the reference control optical channel signal exist simultaneously, the downlink business
Signal injects the downlink WSS together with the reference control optical channel signal, and is emitted from corresponding emission port.
Preferably, if any receiving port receives the control of the reference from other ROADM business side ports
Optical channel signal, the then matching for establishing the emission port optical fiber connection corresponding to other ROADM of the correspondingly received port this ROADM are closed
System, specifically includes:
The uplink WSS determines current receiving port by the poll of each receiving port；
If received with reference to control optical channel receivers from other either direction ROADM by current receiving port
The reference of emission port outgoing controls optical channel signal, then parses the carrying letter with reference to control optical channel signal received
Breath；
Information is carried by parsing, determines the outgoing ROADM and corresponding transmitting terminal with reference to control optical channel signal
Mouthful, the matching relationship of the current receiving port of this ROADM emission port optical fiber connection corresponding with ROADM is emitted is established, both ends are generated
Mouth connects fine configuration information.
Preferably, described by current receiving port, with reference to control optical channel receivers receive from it is other either one
The reference being emitted to ROADM emission port controls optical channel signal, specifically: the uplink service signal of ROADM and the reference
The multiplex light for controlling optical channel signal enters the uplink WSS by current receiving port, and the reference is made after partial wave acts on
Optical channel signal injection is controlled with reference to control optical channel receivers.
Preferably, described to control optical channel signal via the reference that each emission port is emitted with reference to control optical channel transmitter
Transmitting op-tical power information is carried, then connecing as the emission port x and other either direction Y ROADM of either direction X ROADM
After receiving end mouth y establishes a connection, the method also includes:
Received optical power is detected with reference to control optical channel receivers by the direction YROADM is corresponding, while parsing obtains
The op-tical power information that the reference control optical channel transmitter of the direction X ROADM is emitted via emission port x, is calculated phase
Answer the Insertion Loss information of chain road；
Obtain the reference control optical channel hair for the direction X ROADM demarcated in advance being pre-stored in ROADM board
Machine is penetrated to the Insertion Loss of emission port x and the receiving port y of the direction Y ROADM to reference to control optical channel receivers
Insertion Loss；
According to above-mentioned data, calculate between the direction X ROADM emission port x and the direction Y ROADM receiving port y
Optical fiber physical connection Insertion Loss.
Preferably, if duplex is established in certain port of either direction X ROADM and certain port of other either direction Y ROADM
After connection relationship, and when the direction X ROADM is located at different cabinets from the direction Y ROADM, then using described with reference to control
Spare physical channel of the optical channel processed as different cabinet intercaste communication channels cascades interactive industry between cabinet for carrying
Business.
Compared with prior art, the beneficial effects of the present invention are:
In the coalignment and method of ROADM business optical fiber connection provided by the invention, it is inserted into ROADM business side
Reference of the work in the supported wave-length coverage of WSS, outside business optical channel wave-length coverage controls optical channel, is controlled using WSS
With reference to poll of the control optical channel between ROADM business side ports, realize physical connection between different ROADM business side ports from
Dynamic matched routings, solve the problems, such as manual configuration optical fiber link road by inefficiency.Meanwhile when the phase of different directions ROADM
After answering port to establish a connection, the performance of also detectable different directions ROADM business optical fiber connection works as different directions
When ROADM is located at different cabinets, the standby of different cabinet intercaste communication channels is also used as with reference to the communication of control optical channel
Use physical channel.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described.It should be evident that drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the frequency relation provided in an embodiment of the present invention with reference to control optical channel and business optical channel；
Fig. 2 is that the structure of single direction ROADM that optical channel is controlled containing reference provided in an embodiment of the present invention a kind of is shown
It is intended to；
Fig. 3 is another structure containing the single direction ROADM with reference to control optical channel provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is four different directions ROADM board business provided in an embodiment of the present invention that optical channel is controlled containing reference
The schematic diagram of side section optical fiber connection；
Fig. 5 is insertion provided in an embodiment of the present invention with reference to ROADM uplink service process after control optical channel；
Fig. 6 is established between different ROADM business side ports to be provided in an embodiment of the present invention by reference to controlling optical channel
The control flow chart of interconnected relationship；
Fig. 7 is the process provided in an embodiment of the present invention using with reference to control optical channel detection fiber physical connection performance
Figure；
Fig. 8 is provided in an embodiment of the present invention using with reference to control optical channel detection direction X ROADM and direction Y ROADM
The exemplary diagram of fiber port connection；
Fig. 9 is provided in an embodiment of the present invention uses with reference to control optical channel as different cabinet intercaste communication channels
Spare physical examples of channels figure.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, term "inner", "outside", " longitudinal direction ", " transverse direction ", "upper", "lower", "top", "bottom" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention rather than
It is required that the present invention must be constructed and operated in a specific orientation, therefore it is not construed as limitation of the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.Just with reference to drawings and examples, in conjunction with coming, the present invention will be described in detail below.
Embodiment 1:
The embodiment of the invention provides a kind of coalignments of ROADM business optical fiber connection, for single direction
ROADM is inserted into ROADM business side with reference to control optical channel, described to select with reference to the work of control optical channel in ROADM medium wavelength
It switchs in the operating wavelength range of (Wavelength selector switch, be abbreviated as WSS), business optical channel wave-length coverage
In addition.In this way, be not take up the wavelength of business optical channel with reference to control optical channel, can independent communication, therefore not by business light
The limitation of signal presence or absence will not have an impact business optical signal already existing in network.As shown in Figure 1, ROADM
Business optical channel acquisition frequency be f1 between f2, depending primarily on image intensifer operation wavelength, WSS work frequency in ROADM
Rate is f0 between f3, includes f1 to f2, then in f0 between f1 or f2 between f3 to can be inserted into reference to control optical channel.By
In WSS can any wavelength of separate configurations routing, the signal of business optical channel by insertion with reference to control optical channel influenced.
Wherein, the selection principle with reference to control optical channel is specific as follows: C-band communication under normal circumstances occupies 40nm
Business light belt is wide, in conjunction with Fig. 1, it is assumed that the corresponding f1 and f2 in business optical channel acquisition frequency section be respectively 191.325THz and
196.125THz, and WSS can support broader frequency range, for example f0 and f3 are respectively 191.125THz and 196.275THz.
0.2T so between the f0 and f1 and 0.15T between f2 and f3 can be referenced control optical channel and occupy.Wherein, herein
The business optical channel frequency range and WSS frequency range provided merely for convenience of description, specific frequency range can with it is above-mentioned
Example is different, and details are not described herein again.
With reference to Fig. 2, described device include with reference to control optical channel transmitter 1, downlink WSS 2, downlink business side it is multiple
Emission port, with reference to control optical channel receivers 3, multiple receiving ports of uplink WSS 4 and uplink service side, it is assumed that have n
N emission port is denoted as the port port a1- an, n receiving port is denoted as port by a emission port and n receiving port
The port b1- bn.
In a specific embodiment, 1 × n is all made of with reference to Fig. 2, the downlink WSS 2 and uplink WSS 4
WSS, described device further include wave multiplexer 5 and channel-splitting filter 6.Reference control the optical channel transmitter 1, the wave multiplexer 5, institute
It states downlink WSS 2 and multiple emission ports is respectively positioned on the path of downlink side signal, the wave multiplexer 5 is located at the ginseng
It examines between control optical channel transmitter 1 and the downlink WSS 2.Wherein, described to be used to emit with reference to control optical channel transmitter 1
With reference to control optical channel signal, when downlink business optical signal generates simultaneously with the reference control optical channel signal, the conjunction
Wave device 5 is used to that the downlink WSS 2, the downlink will to be injected after downlink business signal and the optical channel multiplex with reference to control
WSS 2 is while routing downlink business signal, it can be achieved that the reference controls optical channel in the polled transmission of each emission port.
It is described with reference to control optical channel receivers 3, the uplink WSS 4, the channel-splitting filter 6 and more continuing with Fig. 2
A receiving port is respectively positioned on the path of uplink side signal, and the channel-splitting filter 6 is located at the uplink WSS 4 and the reference
It controls between optical channel receivers 3.Wherein, described to be used to receive with reference to control optical channel letter with reference to control optical channel receivers 3
Number, the uplink WSS 4 can be used for selecting in each receiving port poll described with reference to control while routing uplink service signal
Optical channel processed, the channel-splitting filter 6 are used to separate the uplink service optical signal with reference to control optical signal and ROADM, in turn
Make described described with reference to control optical channel receivers 3 with reference to control optical signal injection.When certain transmitting terminal of the ROADM of different directions
It mouthful when optical fiber physical connection normal presence, can be established between opposite ends mouth with reference to control light between this ROADM certain receiving port
The communication of channel.Specific method will be introduced in example 2, and details are not described herein again.
In another specific embodiment, with reference to Fig. 3, the downlink WSS 2 uses 2 × n WSS, then in the reference
The wave multiplexer that controls between optical channel transmitter 1 and the downlink WSS 2 that no setting is required, directly completes downlink business by 2 × n WSS
The multiplex of signal and reference control optical channel.And/or the uplink WSS 4 uses 2 × nWSS, then described with reference to control light
No setting is required between channel receiver 3 and the uplink WSS 4 channel-splitting filter, directly by 2 × n WSS complete downlink business signal with
With reference to the partial wave of control optical channel.What Fig. 3 was provided is the feelings that the uplink WSS 4 and uplink WSS 2 is all made of 2 × nWSS
Shape further simplifies structure.
By taking the structure of single direction ROADM shown in Fig. 2 as an example, it is assumed that there are 4 direction ROADM in current network: side
To A ROADM, direction B ROADM, direction C ROADM and direction D ROADM, each direction ROADM unit is such as Fig. 2 institute
Show, then the optical fiber connection relation between different directions ROADM business side ports is as shown in Figure 4, wherein direction A ROADM emitting side
Port a1 pass through optical fiber connect direction C ROADM receiving side port b1；The port a2 of direction A ROADM emitting side passes through light
The port b1 of fibre connection direction D ROADM receiving side；The port an of direction A ROADM emitting side connects direction B by optical fiber
The port bn of ROADM receiving side.Matching process between each port will be introduced specifically in example 2, and details are not described herein again.
In a kind of coalignment of ROADM business optical fiber connection provided by the invention, setting is with reference to control optical channel hair
Machine and reference control optical channel receivers are penetrated, using work in the supported wave-length coverage of WSS, business optical channel wave-length coverage
Outer reference controls optical channel, and optical fiber connects realizing difference ROADM business side ports glitch-free between business light by WSS
Automatic matched routings, solve the problems, such as manual configuration optical fiber link road by inefficiency.
Embodiment 2:
On the basis of above-described embodiment 1, the embodiment of the invention also provides a kind of of ROADM business optical fiber connection
Method of completing the square can be realized by coalignment described in embodiment 1.It is inserted into ROADM business side with reference to control optical channel, it is described
It works in ROADM in the operating wavelength range of WSS, outside business optical channel wave-length coverage with reference to control optical channel.Specific setting
It can refer to embodiment 1 and attached drawing 1, then the method specifically:
For single direction ROADM, in conjunction with the ROADM downlink business link of left-half in Fig. 2, in reference control light letter
Road emitting side, by the downlink WSS 2, polled transmission reference controls optical channel signal between each emission port；Wherein, via
The described of each emission port outgoing carries ROADM board information and corresponding emission port information with reference to control optical channel signal.
In conjunction with the ROADM uplink service link of right half part in Fig. 2, optical channel receiving side is controlled in reference, passes through the uplink WSS 4
The reference control optical channel signal is received in the selection of each receiving port poll, if described with reference to control optical channel receivers 3
The reference from other ROADM is received by any receiving port and controls optical channel signal, then is parsed described with reference to control light
The carrying information of channel signal establishes that the correspondingly received port this ROADM is corresponding to other ROADM to be emitted by these carrying information
The matching relationship of fiber port connection generates two-port and connects fine configuration information.
In the matching process of ROADM business optical fiber connection provided by the invention, it is inserted into ROADM business side with reference to control
Optical channel processed is not take up the wavelength of business optical channel with reference to control optical channel, can independent communication；It is controlled using the WSS in ROADM
With reference to poll of the control optical channel between ROADM different business side ports, when optical fiber connects between the port of the ROADM of different directions
The matching of port can be realized when normal presence, and then provide information for the correct configuration of business routing.This mode improves
Matching inquiry efficiency and accuracy, and there is stronger real-time.
By taking the ROADM structure chart shown in Fig. 2 for controlling optical channel containing reference as an example, for single direction ROADM, under
As follows to the polled transmission and control process of reference control optical channel signal in industry business: the downlink WSS 2 is true by poll
Settled preceding emission port carries ROADM board information and current transmitting terminal message by reference control optical channel transmitter transmitting
The reference of breath controls optical channel signal, from corresponding emission port outgoing, and then is sent out carrying information.Wherein, n is sent out
Penetrate port, the downlink WSS 2 successively poll, for example, can according to port a1, port a2 ..., the incremental order of port an
Successively poll can also be polled, herein without limitation according to other sequences of regulation.Assuming that it is currently polled to port a1,
It is exactly that direction ROADM selection emits from its port a1 with reference to control optical channel signal；Then by described with reference to control optical channel hair
Penetrate the reference control optical channel signal that machine 1 launches carrying corresponding information.For example, being currently direction A ROADM, the then reference
Control optical channel signal carries direction A ROADM information and corresponding port a1 information.The reference control optical channel signal
Emitted by described with reference to control optical channel transmitter 1, is emitted after injecting the downlink WSS 2 from the port a1 of current selected, into
And corresponding carrying information is sent out by port a1.Therefore, described with reference to control optical channel by the downlink WSS
Information can be sent in each emission port poll.
In practical applications, service signal not necessarily occurs with reference control optical channel signal simultaneously, is usually to first pass through
The reference control optical channel establishes physics and connects fine configuration information, then connects service signal.With reference to the device figure of Fig. 2, under
In industry business, downlink business signal is implanted sequentially after the wave multiplexer 5 and the downlink WSS 2 from corresponding emission port after generating
Outgoing.Wherein, when downlink business optical signal and the reference control optical channel signal exist simultaneously, then the downlink business is believed
Number the wave multiplexer 5 is first passed through with reference to control optical channel carrying out multiplex, the multiplex light of formation reinjects the downlink WSS with described
2, and be emitted from corresponding emission port.The downlink WSS2 can independently flexibly by described with reference to control optical channel shift fork to any one
A emission port, since reference control optical channel is not take up the wavelength of business optical channel, not by business optical signal exist with
No limitation will not have an impact business optical signal already existing in network.
For continuing by shown in Fig. 2 containing the ROADM structure chart of reference control optical channel, for single direction ROADM,
In uplink service, by the uplink WSS, poll selection receives the tool with reference to control optical channel between each receiving port
Body process such as Fig. 5, includes the following steps:
Step 301, the uplink WSS determines current receiving port by the poll of each receiving port.With emission port
Poll is similar, for n receiving port, the uplink WSS can according to port b1, port b2 ..., port bn be incremented by it is suitable
Sequence successively poll, can also be polled, herein without limitation according to other sequences of regulation.Assuming that the receiving end being currently polled to
Mouth is port b1.
Step 302, if by current receiving port, with reference to control optical channel receivers receive from it is other either one
The reference being emitted to ROADM emission port controls optical channel signal, then parses the reference control optical channel signal received
Carrying information.Assuming that after the b1 of current selected port, it is described to can receive reference control light letter with reference to control optical channel receivers 3
Road signal then illustrates that there are optical fiber connections between port b1 and some emission port of some other direction ROADM, and then to carrying
Information is parsed.Wherein, the process with reference to control optical channel is received by port b1 specifically: the upper industry of ROADM
Business signal and the multiplex light with reference to control optical channel enter the uplink WSS 4 by current port b1；The partial wave
Device 6 separates the uplink service signal with described with reference to control optical channel, makes described with reference to the control optical channel injection ginseng
Examine control optical channel receivers 3.
Step 303, information is carried by parsing, determines that outgoing is described with reference to the ROADM for controlling optical channel signal and right
Emission port is answered, the matching relationship of the current receiving port of this ROADM emission port optical fiber connection corresponding with ROADM is emitted is established,
It generates two-port and connects fine configuration information.
By taking ROADM node shown in Fig. 4 as an example, direction A ROADM emits side ports a1 and connects direction C by optical fiber
The port b1 of ROADM receiving side；The port a2 of direction A ROADM emitting side connects direction D ROADM receiving side by optical fiber
Port b1；The port an of direction A ROADM emitting side connects the port bn of direction B ROADM receiving side by optical fiber.
According to the optical fiber connection in Fig. 4, connect fine pass by reference to controlling optical channel and establishing between the port all directions ROADM
The process of system is as shown in Figure 6.The reference control optical channel of direction A ROADM via its downlink WSS in each emission port poll, into
And send carrying information；The ROADM uplink WSS of other all directions waits letter to be received in corresponding each receiving port poll
Breath.Optical channel signal is controlled when AROADM downlink WSS selection in direction emits reference from its port a1, while on the C ROADM of direction
When row WSS selects its port b1 to receive the optical channel signal with reference to control, connect on the C ROADM of direction with reference to control optical signal
Signal of the functional analysis from the direction port AROADM a1 is received, and then generates direction AROADM port a1 and the direction end C ROADM
Mouth b1 connects fine configuration information.Similarly, the direction A ROADM port a2 and direction port D ROADM b1 connects fine configuration information, side
To the port the AROADM an and direction port B ROADM bn configuration information and other that may be present do not drawn in Fig. 5
Configuration information can also be automatically generated accordingly.Wherein, what Fig. 6 was provided is with direction AROADM downlink WSS port polling, while direction
Matching process when B ROADM uplink WSS port polling, the matching process between other all directions ROADM is also according to the process
It carries out, details are not described herein again.
The matching process of ROADM business optical fiber connection provided by the invention, using work in the supported wavelength model of WSS
Reference control optical channel in enclosing, outside business optical channel wave-length coverage, realizes different directions ROADM glitch-free to business light
The automatic matched routings of business optical fiber connection solve the problems, such as manual configuration even fine relationship inefficiency.
Embodiment 3:
On the basis of above-described embodiment 1 and embodiment 2, the present invention also provides another described with reference to control optical channel
Application the matching of ROADM business optical fiber connection is established by 2 the method for embodiment using device described in embodiment 1
After relationship, also using the monitoring for carrying out optical fiber physical connection performance with reference to control optical channel.
In embodiments of the present invention, described to be controlled with reference to control optical channel transmitter 1 via the reference that each emission port is emitted
Optical channel signal processed also carries transmitting op-tical power information, then in the different corresponding ports the ROADM base that even fine configuration information is established
On plinth, transmitting op-tical power information can also be transmitted with reference to control optical channel, by detecting received optical power in receiving end, obtains phase
The Insertion Loss information for answering link generates alarm to the underproof optical fiber physical connection of performance compared with design value pair.Work as either direction
After the receiving port y of emission port x and either direction the Y ROADM of X ROADM establishes a connection, physics between two-port is detected
The process of switching performance as shown in fig. 7, specifically includes the following steps:
Step 401, received optical power is detected with reference to control optical channel receivers by the direction Y ROADM is corresponding, together
When parse to obtain the op-tical power information that the reference control optical channel transmitter of the direction X ROADM is emitted via emission port x,
The Insertion Loss information in corresponding link is calculated.Here in connection with Fig. 8, with certain emission port x and direction Y of direction X ROADM
For connection between certain receiving port y of ROADM, on the link, the reference of direction X ROADM controls optical channel transmitter
(be labeled as point tp1), the direction port X ROADM x (being labeled as point tp2), the direction port YROADM y (labeled as point tp3) and
Direction Y ROADM is with reference to control optical channel receivers (being labeled as point tp4).In actual use, by detecting and parsing obtains
The power p4, p1-p4 of power p1 and the tp4 point of tp1 point are the Insertion Loss value of the optical signal chain road.
Step 402, the reference control for the direction X ROADM demarcated in advance being pre-stored in ROADM board is obtained
Optical channel transmitter is to the Insertion Loss of emission port x and the receiving port y of the direction Y ROADM to reference to control optical channel
The Insertion Loss of receiver.For variant direction ROADM, in ROADM factory, demarcate in advance described with reference to control optical channel transmitting
Machine is to the Insertion Loss of each emission port and each receiving port to reference to the Insertion Loss for controlling optical channel receivers.For example, herein
Obtain direction X ROADM with reference to control optical channel transmitter (point tp1) according to calibration result is to the Insertion Loss of port x (point tp2)
It is IL2 that IL1, the direction port Y ROADM y (point tp3), which are arrived with reference to the Insertion Loss for controlling optical channel receivers (point tp4),.
Step 403, it according to above-mentioned data, calculates the direction X ROADM emission port x and direction YROADM and receives
Optical fiber physical connection Insertion Loss between the y of port.Between the direction port X ROADM x (point tp2) and the direction port B ROADM y (point tp3)
Optical fiber physical connection Insertion Loss are as follows: (p1-p4)-(IL1+IL2)；If p1-p4 > > IL1+IL2, illustrates between tp2 and tp3
Optical fiber physical connection Insertion Loss it is excessive.An alarm threshold can be set according to the actual application herein, as (p1-p4)-(IL1+
Alarm is generated when IL2) more than alarm threshold.
In summary, on the basis of configuration information is established between the different corresponding ports ROADM, also using embodiment 1
Described in device, monitor optical fiber physical connection between different directions ROADM business side ports with reference to control optical channel by described
Performance, this for it is heretofore described with reference to control optical channel another application.
Embodiment 4:
On the basis of above-described embodiment 1 and embodiment 2, the present invention also provides another described with reference to control optical channel
Application ROADM business side is established even after fine relationship by 2 the method for embodiment using device described in embodiment 1,
Also the spare physical channel as different cabinet intercaste communication channels is carried out with reference to control optical channel using described.
After port match by embodiment 2, if duplexing connection relationship is established between two ports different directions ROADM, and
When described two different directions ROADM are located at different cabinets, then using the reference control optical channel as different cabinet intercastes
The spare physical channel of communication channels cascades interactive business between cabinet for carrying.The duplexing connection relationship tool of the foundation
Body refers to that certain receiving port of certain emission port of either direction X ROADM and other either direction Y ROADM establish connection pass
System, meanwhile, certain emission port of direction Y ROADM also establishes a connection with certain receiving port x of direction X ROADM, then institute
It states and establishes duplexing connection relationship between direction X ROADM and the direction Y ROADM, and then can realize duplex communication.
With specific reference to Fig. 9, it is assumed that the receiving port bn of emission port an and direction the Y ROADM of direction X ROADM is realized
Matching, and the emission port an of direction Y ROADM is matched with the receiving port bn of direction X ROADM realization, the direction X
ROADM is located at mainframe box, and the direction Y ROADM is located at from cabinet, the mainframe box and it is described from cabinet the two equipment it
Between need to be arranged cabinet cascade channel, establish the communication connection between two cabinets, complete information exchange.Under normal conditions, institute
Stating cabinet cascade channel is physical connection channel, for example communication link between two cabinets is established by network interface and cable
It connects, breaks down if there is network interface or the problem of cable disconnects, then the mainframe box and described between cabinet
Communication connection will disconnect, and influence normal communication.As the port bn/an of port an/bn and direction the Y ROADM of direction X ROADM
After establishing duplex communication connection by reference to control optical channel, the reference control optical channel can be directly as between two cabinets
Spare chassis cascade channel, still may be used in the case where network interface breaks down or cable disconnects, between two cabinets
It, can be real without connected with network cable without will affect normal communication to realize information exchange by the spare chassis cascade channel
Communication between existing two cabinets.
In summary, on the basis of configuration information is established between different directions ROADM business side corresponding port, if different
Direction ROADM is located at different cabinets, also using device described in embodiment 1, controls light using the reference of different directions ROADM
Communication between channel, as the spare physical channel of different cabinet cascaded communication channels, this is to be heretofore described with reference to control
Another application of optical channel processed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of coalignment of ROADM business optical fiber connection, which is characterized in that control optical channel transmitter including reference
(1), downlink WSS (2), multiple emission ports, with reference to control optical channel receivers (3), uplink WSS (4) and multiple receiving ends
Mouthful；
It is described to be used for reference to control optical channel transmitter (1) for emitting reference control optical channel signal, the downlink WSS (2)
Realize the reference control optical channel in the polled transmission of each emission port；
It is described to be used for reference to control optical channel receivers (3) for receiving reference control optical channel signal, the uplink WSS (4)
It is described with reference to control optical channel to realize that each receiving port poll selection receives；
Wherein, it is described with reference to control optical channel work in ROADM in the operating wavelength range of WSS, business optical channel wavelength model
Other than enclosing.
2. the coalignment of ROADM business optical fiber connection according to claim 1, which is characterized in that further include multiplex
Device (5), the wave multiplexer (5) are located between reference control optical channel transmitter (1) and the downlink WSS (2), the conjunction
Wave device (5) is used to the downlink business signal of ROADM and described be multiplexed together with reference to control optical channel injecting the downlink WSS
(2)。
3. the coalignment of ROADM business optical fiber connection according to claim 1, which is characterized in that further include partial wave
Device (6), the channel-splitting filter (6) are located between the uplink WSS (4) and reference control optical channel receivers (3), and described point
Wave device (6) is used to separate the uplink service optical signal with reference to control optical channel and ROADM.
4. a kind of matching process of ROADM business optical fiber connection, which is characterized in that be inserted into ROADM business side with reference to control
Optical channel, it is described with reference to control optical channel work in ROADM in the operating wavelength range of WSS, business optical channel wave-length coverage
Outside；Wherein, uplink WSS, downlink WSS, multiple emission ports and multiple receiving ports are provided in ROADM；Then the method has
Body are as follows:
Optical channel emitting side is controlled in reference, polled transmission reference control light is believed between each emission port by the downlink WSS
Road signal；Optical channel receiving side is controlled in reference, is received by the uplink WSS in each receiving port poll, if any connect
Receiving end mouth receives the control optical channel signal of the reference from other ROADM emission ports, then it is correspondingly received to establish this ROADM
The matching relationship of port emission port optical fiber connection corresponding to the other ROADM.
5. the matching process of ROADM business optical fiber connection according to claim 4, which is characterized in that controlled in reference
Optical channel emitting side carries ROADM board information via the reference control optical channel signal that each emission port is launched
With corresponding emission port information.
6. the matching process of ROADM business optical fiber connection according to claim 5, which is characterized in that described to refer to
Optical channel emitting side is controlled, polled transmission is with reference to control optical channel signal between each emission port by the downlink WSS, specifically
Are as follows: the downlink WSS determines current emission port by poll, carries ROADM by reference control optical channel transmitter transmitting
The reference of board information and current emission port information controls optical channel signal, from corresponding emission port outgoing, and then to outgoing
Send carrying information；
Wherein, when downlink business optical signal and the reference control optical channel signal exist simultaneously, the downlink business signal
The downlink WSS is injected together with the reference control optical channel signal, and is emitted from corresponding emission port.
7. the matching process of ROADM business optical fiber connection according to claim 5, which is characterized in that if described appoint
One receiving port receives the control optical channel signal of the reference from other ROADM business side ports, then establishes this ROADM phase
The matching relationship for answering receiving port emission port optical fiber connection corresponding to other ROADM, specifically includes:
The uplink WSS determines current receiving port by the poll of each receiving port；
If receiving with reference to control optical channel receivers and emitting from other either direction ROADM by current receiving port
The reference of port outgoing controls optical channel signal, then parses the carrying information with reference to control optical channel signal received；
Information is carried by parsing, the outgoing ROADM and corresponding emission port with reference to control optical channel signal is determined, builds
The matching relationship for standing the emission port optical fiber connection corresponding with ROADM is emitted of the current receiving port of this ROADM, it is even fine to generate two-port
Configuration information.
8. the matching process of ROADM business optical fiber connection according to claim 7, which is characterized in that described by working as
Preceding receiving port receives the reference being emitted from other either direction ROADM emission ports with reference to control optical channel receivers
Optical channel signal is controlled, specifically: the uplink service signal of ROADM passes through with the multiplex light with reference to control optical channel signal
Current receiving port enters the uplink WSS, makes the reference control optical channel signal injection with reference to control after partial wave acts on
Optical channel receivers.
9. the matching process of ROADM business optical fiber connection according to claim 4, which is characterized in that described with reference to control
Reference that optical channel transmitter processed is emitted via each emission port control optical channel signal carries transmitting op-tical power information, then when
It is described after the receiving port y of the emission port x of either direction X ROADM and other either direction YROADM establishes a connection
Method further include:
Received optical power is detected with reference to control optical channel receivers by the direction Y ROADM is corresponding, while parsing obtains institute
The op-tical power information that the reference control optical channel transmitter of direction X ROADM is emitted via emission port x is stated, is calculated corresponding
The Insertion Loss information of chain road；
Obtain the reference control optical channel transmitter for the direction X ROADM demarcated in advance being pre-stored in ROADM board
To the Insertion Loss of emission port x and the receiving port y of the direction Y ROADM to reference to the Insertion Loss for controlling optical channel receivers；
According to above-mentioned data, the light between the direction X ROADM emission port x and the direction Y ROADM receiving port y is calculated
The Insertion Loss of fine physical connection.
10. the matching process of ROADM business optical fiber connection according to claim 4, which is characterized in that if two differences
Duplexing connection relationship is established between the ROADM board business side ports of direction, and described two different directions ROADM are located at different cabinets
When, then using the spare physical channel with reference to control optical channel as different cabinet intercaste communication channels, for carrying
Interactive business is cascaded between cabinet.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811073053.0A CN109088777B (en) | 2018-09-14 | 2018-09-14 | Device and method for matching optical fiber connection of ROADM service side |
| US16/226,591 US10666377B2 (en) | 2018-09-14 | 2018-12-19 | Method and apparatus for matching fiber connections for ROADM service |
| EP18215418.7A EP3624369B1 (en) | 2018-09-14 | 2018-12-21 | Method and apparatus for matching fiber connections for roadm service |
| JP2018242028A JP6873095B2 (en) | 2018-09-14 | 2018-12-26 | Equipment and methods for matching fiber optic connections on the ROADM service side |
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| CN201811073053.0A CN109088777B (en) | 2018-09-14 | 2018-09-14 | Device and method for matching optical fiber connection of ROADM service side |
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| CN109088777B CN109088777B (en) | 2021-12-31 |
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| EP (1) | EP3624369B1 (en) |
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| CN114785698B (en) * | 2022-05-11 | 2023-06-27 | 武汉光迅科技股份有限公司 | Topology discovery and connectivity verification method and device in ROADM system |
| WO2023216434A1 (en) * | 2022-05-11 | 2023-11-16 | 武汉光迅科技股份有限公司 | Method and device for topology discovery and connectivity verification in roadm system |
Also Published As
| Publication number | Publication date |
|---|---|
| US10666377B2 (en) | 2020-05-26 |
| JP6873095B2 (en) | 2021-05-19 |
| EP3624369A1 (en) | 2020-03-18 |
| CN109088777B (en) | 2021-12-31 |
| JP2020048177A (en) | 2020-03-26 |
| US20200092027A1 (en) | 2020-03-19 |
| EP3624369B1 (en) | 2021-06-02 |
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